Web roll supporting and pasting mechanism



NOV. 24, 1931. v, BALL WEB ROLL SUPPORTING AND PASTING MECHANISM FiledJun 9, 1928 2 Sheets-Sheet 1 Nov. 24, 1931.

H. v. BALL 1,833,632

WEB ROLL SUPPORTING AND PASTING MECHANISM Filed June 9, 1928 2Sheets-Sheet 2 Patented Nov. 24, '1931 I UNITED STATES PATENT OFFICEHARRY V. BALL, OF CONCORD, MASSACHUSETTS, ASSIGNOR 1'0 B. HOE & CO.,INC, 01'

NEW YORK, N. Y., A CORPORATION OF NEW YORK WEB ROLL SUPPORTING ANDPAS'IIN MEGHANISI Application filed June 9, 1928. Serial No. 284,187.

time so as not to lessen the press product more than is necessary foreffecting the pasting operation. Furthermore, where large multi-unitmachines are used, space in the press room is a matter of importance andit is desirable that these roll changers or renewers occupy as small aspace as possible, particularly where there is but little room above orbelow the press available for the roll changing mechanism because of theclose association of the units. It is, furthermore, desirable that thesemechanisms be so arranged that new or spare web rolls may be readily andquickly loaded into position.

It is the especial object of the present invention to provide a web rollchanging mechanism which includes a support for supporting a spare webroll and a running web roll I in superposed relation but out ofalignment so that but a narrow space is taken up by the web rolls andthe web roll changing mechanism, the support being held against rotationto hold the web rolls in the desired position.

It is the further object of the present invention to provide an improvedmechanism,

located between the spare web roll and the running web roll, by whichthe end of a spare web may be united to a web running to the press.

A further object of the invention is to provide tension devices engagingthe surface of the running web roll which can be readily moved out ofthe way so that a web .roll may be quickly loaded into the support.

With these and other objects not specifically referred to in view, theinvention consists in certain novel parts, arrangements and-combinationswhich will be described in connection with the accompanying drawings andthe novel features pointed out in the claims hereunto annexed.

mechanism showing a web roll running to the press in the lower positionand a spare web roll in the upper position;

Figure 2 is an end view of the mechanism shown in Figure 1 looking inthe direction of arrow 2 of that figure;

Figure 3 is a plan view, partly in section and partly broken away, takenon the broken line 33 of Figure 1;

Figure 4 is an end view, partly broken away, of part of the constructionshown in Figure 3, the view being taken in the direction of arrow 4 ofFigure 1, and

Figure 5 is a view partly in section showing a modified arrangement ofthe mecha msm by means of which the end of a spare web roll is pasted tothe web running to the press.

Referring now to these drawings, there is provided a roll supportcapacitated to carry a spare web roll and a running web roll arranged insuperposed and offset relation with each other, this support being heldagainst rotation, this arrangement economizing in space in the pressroom and permitting the use of tension devices for a web roll in eachare arms 5, 6. These arms, at their opposite ends, are provided withchucks 7, 8, 9, 10, for supporting a running web roll R and a spare webroll S. As shown, the arms 5, 6 are positioned on the shaft so-that theupper chucks 7, 8, are offset relatively to the. lower chucks 9, 10,this arrangement being ado ted for purposes hereinafter referred to.%his arrangement causes an unbalanced condition, the position of theupper web roll S being not rotate on the shaft, but are movable thereonsidewise so'as to accommodate half or quarter width rolls withoutspindling. Furthermore, meansare also provided to allow the shaft tohave a sidewise movement for web adjustment. Various means may beprovided for preventing the rotation of the shaft 1 and for permittingan endwise movement I of this shaft in its supports. In the particularconstruction illustrated there is provided, beyond the bracket 3, thehub 14 l-:eyed to the shaft 1 and carrying an arm 15 which supportsa,roll 16 which engages in a guide or holding slot 17 of a bracket 18suitably secured to one of the frames 4. With this construction theshaft is prevented from turning but may have a sidewise movement in thesupporting bracket 3 so that it can bemoved sidlewise for sideadjustment of the running we Constructions embodying the invention willinclude tension devices which engage the roll surface and control theunwinding of the running web, and in the best constructions separatetension devices are provided for both the running and the spare webrolls. While these devices may vary in character, as shown, they includea pair of narrow belts or straps 19, 20, which are supported so as tofollow the web roll as the web roll decreases in size, weights orsimilar devices being em- I ployed to cause the straps to engage thesurface of the roll with the desired tension. These belts or straps maybe supported so as to follow the roll in various ways. In the particularconstruction shown the straps are secured at one of their ends to afloating rod- 21, the other ends of the straps having fastened theretotension producing devices, as weights, indicated at 22. The rod 21 isfreely movable so that it will followthe web roll as the rolldecreasesin. size. IVhile various expedients may be provided forpermitting this movement of the rod 21, as shown, there are provided, ateach side of the machine, short inclined rods 23, 24 which are fastenedin upper and lower hubs 25, 26, the lower of these hubs being supportedin brackets 27 bolted or'otherwise secured to the side frames 4, beforereferred to.

When it is desired to load a new web roll into the supports, the beltsare lifted and the rod21 moved upwardly out of the path of an enterin orspare web roll. Located onthe rod 21, an preferably outside and insidethe belts or straps, are a plurality of guide rolls ends of the beltscarried thereby from the surface of the roll, as clearly shown in FigureIn the best constructions, means are provided for holding the belt rod21 out of the way when a web roll is to be loaded into thesupport, whichmeans may be varied somewhat in construction. As shown, the rod 21,outside the frames 4, has secured thereto one end of cables'28, thesecables passing over pulleys 29, 3O suitably secured to the side frames4, the other ends of these cables having secured thereto weights 31.lVith this construction, when the belt rod 21 is lifted, the weights 31act to hold the rod 21 in an elevated position and out of the way, sothat a new roll may be readily loaded into the support. It will beunderstood that the weight of the belt rod 21 and the weights 22 isgreater than the lifting power of the weights 31, so that the belt rolls21' engage with and follow the web roll as it decreases in size.

In accordance with the invention, means are provided whereby the end ofa new web roll may be united to a web running to the press, and in thebest constructions these means are located between the running and thespare web rolls. While these means may be of various characters, in thepreferred construction and as shown there'is provided a pair of pastingrolls 32, 33 which are arranged to have a relative movement toward andfrom each other. In the particular construction illustrated the roll 33is a stationary roll, being supported in extensions 34 of the brackets3, before referred to. The roll 32 is mounted so as to have a movementtoward and from the roll 33, being supported in arms 36 on a rock shaft37' pivoted in the extensions 34 of -the brackets 3, this shaft beinggiven a rocking movement by an operating handle 38.

These rolls 32, 33 are normally separated, the running web, indicatedby-the letter W,

passing between these rolls and around one is lightly secured to theidle pasting roll, the

roll 33 in the particular construction shown, by grease or the like, anda portion of the outside of the spare web roll has adhesive appliedthereto. In the operation of this mechanism, when it is desired to makea paste, the

speed of the press is reduced, and by the operation of the hand lever 38the movable pasting roll is pressed'against the running web, whichcauses the new. web to be drawn through the machineand thus start thesparev or new roll. As soon as the portion of the new web havingadhesive applied thereto comes in-contact with the running web it willbe pasted'thereto and carried on into the press, and the old web maythen be broken in any suitable or desired manner. Of course, if desired,the new roll can be moved, either by hand or in any other suitablemanner, to start and accelerate it in order to lessen the drag or pullof the pasted portion of the new and old webs.

If desired, instead of lightly attaching theend of the new web directlyto one of the pastingrolls 32, 33, as the case may be, curved plates,indicated bythe numeral 39, may be provided to which the end of the newweb is lightly attached. With this construction,

. in the specific construction shown and described without departingfrom the invention as defined in the appended claims.

What I claim is:

1. In a web roll changing mechanism, the combination of a support heldagainst rotation for supporting a running web roll and a spare web rollout of alignment, means for permitting a sidewise adjustment of thesupport, and a pair of pasting rolls located between the web rolls, oneof which is movable toward and from the other for joining the end of anew web roll to the expiring web.

2. In a web roll changing mechanism,- the combination of a support heldagainst rotation for supporting a running web roll and a spare web rollout of alignment, means for permitting a sidewise movement of thesupport, a pasting mechanism located between the web rolls for joiningthe web of a new web roll to the expiring web, and a tension deviceengaging the surface of the running web roll and supported at one end tofollow the web roll as it decreases in size, the other end of thetension device being connected to tension producing means.

3. "In a web roll changing mechanism, the

' combination of a support held against rotation for supporting arunning web roll and a spare web roll out of alignment,'means forpermitting a sidewise movement of the support, a pasting mechanismlocated between the web rolls for joining the end of a new web roll tothe expiring web, a tension strap engaging the surface of the runningweb roll, a bar to which one end of the strap is secured, guides for thebar to permit it to follow the web roll as it decreases in size, andmeans for holding the bar out of the way of a roll loaded into thesupport.

4. In a web roll changing mechanism, the combination of a shaft, armsonthe shaft movable sidewise thereof for sup orting a spare web roll anda running we roll, an arm keyed to the shaft, a roll carried by the arm,an abutment with which the roll cooperates to hold the shaft againstrotation, and pasting mechanism for joining the end of .a new web rollto the explring web.

5. In a web roll changing mechanism, the combination of a support forsupporting a spare. web roll and a running web roll in superposed andoffset relation, a pair of pasting rolls located between the web rollsbetween which pastin rolls the web runs to the press, and means a jacentthe rolls to which one end of a new web may be lightly secured pendingthe making of a paste between it and the running web.

6. In a'web roll changin mechanism, the A combination of a support orsupporting a spare web roll and a running web roll in superposed andoffset relation, a pair of pasting rolls located between the web rollsbetween which pasting rolls the web runs to the press, and curved platesadjacent the rolls to which one end of a new web may be lightly securedpending the making of a paste between it and the running web.

In testimony whereof, I have hereuntoset my hand.

HARRY V. BALL.

